Comparable stake leader
BlackRock, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000932696.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 May 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
14%
|
$500,801,650
4,415,847 shares
|
+$34,576,018 | 30 Sep 2025 |
| MORGAN STANLEY |
13D/G
13F
Company
|
10%
|
$272,739,654
3,123,450 shares
|
+$24,240,993 | 31 May 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
8.3%
|
$166,660,370
2,487,097 shares
|
$0 | 31 Mar 2026 |
| FIDUCIARY MANAGEMENT INC /WI/ |
13D/G
13F
Company
|
6.2%
|
$193,866,136
1,875,277 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.4%
|
$108,271,542
1,615,752 shares
|
$0 | 31 Mar 2026 |
| VA Partners I, LLC |
13D/G
|
4.7%
|
$149,983,432
1,446,739 shares
|
-$22,807,400 | 26 Nov 2025 |
| FMR LLC |
13F
13D/G
Company
|
3%
from 13D/G
|
$180,254,344
2,689,962 shares
|
— | 31 Mar 2026 |
| ValueAct Holdings, L.P. |
3/4/5
10%+ Owner
|
9.5%
|
$363,040,209
2,861,739 shares
|
— | 26 May 2025 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to buying over the last 12 months. Net value: +$139,777.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 2,290 | 559 | $199,814 | $60,037 | +$139,777 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Showing 1-20 of 27 reporting-owner rows connected to INSIGHT ENTERPRISES INC. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Alexander L. Baum | Director, Other*, 10%+ Owner | $770,108,098 | Mixed | 15 Feb 2024 | ||
| ValueAct Holdings, L.P. | 10%+ Owner | $363,040,209 | Mixed | 26 May 2025 | ||
| Kenneth T. Lamneck | Vice President | $38,098,877 | Mixed | 03 Jan 2022 | ||
| Timothy A. Crown | Director | $19,188,934 | Mixed | 21 May 2026 | ||
| Glynis Bryan | Executive Vice President | $17,054,036 | Mixed | 12 Feb 2025 | ||
| Joyce A. Mullen | Chief Executive Officer | $8,241,946 | Mixed | 20 Feb 2026 | ||
| Samuel C. Cowley | Gen'l Counsel & Secretary | $3,058,233 | Mixed | 20 Feb 2026 | ||
| Daniel Burger | President INA | $2,386,460 | Mixed | 20 Feb 2026 | ||
| Richard E. Allen | Director | $1,850,816 | Mixed | 21 May 2026 | ||
| Jeffery Shumway | Chief Information Officer | $1,837,443 | Mixed | 20 Feb 2022 | ||
| Anthony A. Ibarguen | Director | $1,687,495 | Mixed | 21 May 2026 | ||
| James A. Morgado | Chief Financial Officer | $1,638,097 | +$199,814 | +14% | Mixed | 11 May 2026 |
| Emma DeSousa | President, EMEA | $1,397,654 | Mixed | 20 Feb 2022 | ||
| Kathleen S. Pushor | Director | $1,289,296 | Mixed | 12 May 2025 | ||
| Linda A. Breard | Director | $1,080,586 | Mixed | 21 May 2026 | ||
| Catherine Courage | Director | $1,068,859 | Mixed | 21 May 2026 | ||
| Bruce Armstrong | Director | $1,016,072 | Mixed | 21 May 2026 | ||
| Adrian P. Gregory | President, EMEA | $915,126 | Mixed | 20 Feb 2026 | ||
| Girish D. Rishi | Director | $908,454 | Mixed | 21 May 2026 | ||
| Robert Douglas Green | Chief Digital Officer | $878,087 | Mixed | 20 Feb 2026 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Karim Adatia | NSIT | Common Stock | Sale | -69.3% | $60,037 | $107.40 | -559 | 248 | 29 May 2026 | Direct |
| Anthony A. Ibarguen | NSIT | Common Stock | Options Exercise | 1.46% | 320 | 22,188 | 21 May 2026 | Direct | ||
| Anthony A. Ibarguen | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | Direct | |||
| Girish D. Rishi | NSIT | Common Stock | Options Exercise | 2.42% | 320 | 13,557 | 21 May 2026 | By Trust | ||
| Girish D. Rishi | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | By Trust | |||
| Richard E. Allen | NSIT | Common Stock | Options Exercise | 1.17% | 320 | 27,620 | 21 May 2026 | By Trust | ||
| Richard E. Allen | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | By Trust | |||
| Timothy A. Crown | NSIT | Common Stock | Options Exercise | 0.34% | 320 | 93,160 | 21 May 2026 | By Trust | ||
| Timothy A. Crown | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | By Trust | |||
| Bruce Armstrong | NSIT | Common Stock | Options Exercise | 2.16% | 320 | 15,163 | 21 May 2026 | By Trust | ||
| Bruce Armstrong | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | By Trust | |||
| Catherine Courage | NSIT | Common Stock | Options Exercise | 2.53% | 320 | 12,956 | 21 May 2026 | Direct | ||
| Catherine Courage | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | Direct | |||
| Linda A. Breard | NSIT | Common Stock | Options Exercise | 2.5% | 320 | 13,131 | 21 May 2026 | Direct | ||
| Linda A. Breard | NSIT | Restricted Stock Units | Options Exercise | 320 | 320 | 21 May 2026 | Direct | |||
| Bruce Armstrong | NSIT | Common Stock | Options Exercise | 2.81% | 405 | 14,843 | 17 May 2026 | By Trust | ||
| Bruce Armstrong | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | By Trust | |||
| Timothy A. Crown | NSIT | Common Stock | Options Exercise | 0.44% | 405 | 92,840 | 17 May 2026 | By Trust | ||
| Timothy A. Crown | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | By Trust | |||
| Richard E. Allen | NSIT | Common Stock | Options Exercise | 1.51% | 405 | 27,300 | 17 May 2026 | By Trust | ||
| Richard E. Allen | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | By Trust | |||
| Girish D. Rishi | NSIT | Common Stock | Options Exercise | 3.16% | 405 | 13,237 | 17 May 2026 | By Trust | ||
| Girish D. Rishi | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | By Trust | |||
| Catherine Courage | NSIT | Common Stock | Options Exercise | 3.31% | 405 | 12,636 | 17 May 2026 | Direct | ||
| Catherine Courage | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | Direct | |||
| Anthony A. Ibarguen | NSIT | Common Stock | Options Exercise | 1.89% | 405 | 21,868 | 17 May 2026 | Direct | ||
| Anthony A. Ibarguen | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | Direct | |||
| Linda A. Breard | NSIT | Common Stock | Options Exercise | 3.26% | 405 | 12,811 | 17 May 2026 | Direct | ||
| Linda A. Breard | NSIT | Restricted Stock Units | Options Exercise | 405 | 0 | 17 May 2026 | Direct | |||
| Bruce Armstrong | NSIT | Common Stock | Options Exercise | 3.45% | 482 | 14,438 | 13 May 2026 | By Trust | ||
| Bruce Armstrong | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | By Trust | |||
| Bruce Armstrong | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | By Trust | ||
| Timothy A. Crown | NSIT | Common Stock | Options Exercise | 0.52% | 482 | 92,435 | 13 May 2026 | By Trust | ||
| Timothy A. Crown | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | By Trust | |||
| Timothy A. Crown | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | By Trust | ||
| Richard E. Allen | NSIT | Common Stock | Options Exercise | 1.82% | 482 | 26,895 | 13 May 2026 | By Trust | ||
| Richard E. Allen | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | By Trust | |||
| Richard E. Allen | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | By Trust | ||
| Girish D. Rishi | NSIT | Common Stock | Options Exercise | 3.9% | 482 | 12,832 | 13 May 2026 | By Trust | ||
| Girish D. Rishi | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | By Trust | |||
| Girish D. Rishi | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | By Trust | ||
| Janet Foutty | NSIT | Common Stock | Options Exercise | 221.1% | 482 | 700 | 13 May 2026 | By Trust | ||
| Janet Foutty | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | By Trust | |||
| Janet Foutty | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | By Trust | ||
| Thomas Reichert | NSIT | Common Stock | Options Exercise | 221.1% | 482 | 700 | 13 May 2026 | Direct | ||
| Thomas Reichert | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | Direct | |||
| Thomas Reichert | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | Direct | ||
| Anthony A. Ibarguen | NSIT | Common Stock | Options Exercise | 2.3% | 482 | 21,463 | 13 May 2026 | Direct | ||
| Anthony A. Ibarguen | NSIT | Restricted Stock Units | Award | 2,291 | 2,291 | 13 May 2026 | Direct | |||
| Anthony A. Ibarguen | NSIT | Restricted Stock Units | Options Exercise | 100.2% | 482 | 963 | 13 May 2026 | Direct |